Changing properties on user control based on Enabled property

In .NET C# 3.5 Winforms, I have a user control with some simple child controls such as textboxes, labels, and buttons. Currently when I set the .Enabled propert开发者_开发问答y of the user control to false, the controls dim accordingly. However, if I use a custom .BackColor for the user control, sometimes the dimming is not as apparent as I would prefer.

Is there a way to specify or change the dimming color of the user control when .Enabled is set to false? Or on a related note, is there a way I can call a method when this happens?

Controls have an EnabledChange event you can tap into. Create a handler for this event for the user control and change its controls' properties accordingly.

You can override .OnEnabledChanged(EventArgs e) method if you dont want to subscribe to EnabledChanged event, and it's a better solution than hiding Control's .Enable property, which is not marked virtual:

protected override OnEnabledChanged(EventArgs e)
{
    base.OnEnabledChanged(e);
    // your code here
}

I wound up overriding the base property of the user control, because I wanted the code that handles the state change to be in the user control itself (rather than subscribing to an event).

This is what I did:

public new bool Enabled
{
    get
    {
        return base.Enabled;
    }
    set
    {
        base.Enabled = value;
        // code to alter the appearance of control
    }
}

EDIT:

The suggestion of self-subscribing to the even within the user control seemed much cleaner than hiding the non-virtual Enabled property. Further edits to other answers gave me this better solution:

this.EnabledChanged += new EventHandler(UserControl_EnabledChanged);
void UserControl_EnabledChanged(object sender, EventArgs e)
{
    // code to alter appearance of control
}